Display A Message Box If The User Doesn't Select Anything From Combo Box?
Apr 25, 2010How can I check for my combo box to have a selected item? I want to display a message box if the user doesn't select anything from my combo box.
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Database Doesn't Select A Category From Combo Box
Dec 27, 2010I am trying to trap an error that would occur if the user in my database does not select a category from a combo box before saving the record.[code] Naturally the example does not work, but would like some help with this.[code]Categoryid is set up as not to allow null.type int
View 8 RepliesAllow User Select The Sign Name From A Combo Box If User Choose?
Jan 18, 2011Write an application that tests the user�s knowledge of road signs. The application should display a random sign image and ask the user to select the sign name from a Combobox.
View 12 RepliesDisplay Others Data After Select From Combo Box?
Nov 22, 2011Sub CboSO_DropDown(ByVal sender As Object, ByVal e As System.EventArgs) Handles CboSO.DropDown[code]...
View 1 RepliesGenerate An Error Message To The User To Let Them Know A File Doesn't Exist?
May 10, 2010im trying to generate an error message to the user to let them know a file doesnt exist.So far ive got the user to enter the file name into a textbox, they click search and if successful will load a new form with a PDF file reader built in( AxAcroPDF1 )everytime i enter the right file name i get the file loaded, if enter the wrong name the File page still loads with no pdf and no message saying file doesnt exist.
Private
Sub PictureBox1_Click(ByVal
sender As System.Object,
ByVal e
[code]....
Make The User To Be Able To Select A State From A Combo Box?
Feb 8, 2009I'm setting up a program where I would like the user to be able to select a state from a combo box. I can not figure out how to allow to select the abbreviation from the drop down list and also allow them to type a letter and it will select the state from the state or just allow them to type the full abbreviation that would match what is already in the list. It is supposed to be in the drop down list style. I would also like to confirm that the user has chosen a state before allowing them to click a submit button but I'm not sure how to go about confirming it.
Private Sub FrmMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
' Inserts state abbreviations in combo box
cboState.SelectedItem = " "
cboState.Items.Add(" ")
[code].....
When User Clicks Dropdown / Doesn't Select Anything
Mar 25, 2009I currently have a few comboboxes in my project that on the 'Dropdown' event, I have them show items from a database that I have bound to the Combobox, I have tried this on several other events too with the same result.The problem i'm having is when the user clicks the dropdown but doesn't select anything, it automatically defaults the first item in the combobox although nothing was ever really selected so what I want is the combobox to remain blank UNTIL they click on an item in the dropdown, is there a way to avoid this? Is there some code I can place in the combobox's selected indexchange to prevent the first item in the list from appearing unless it was actually physically clicked?
View 5 RepliesSelect Item From ComboBox And Message Display In ListBox
Dec 26, 2009I have a form like that: What I need to do is when the user selects item1 from combobox a message will be displayed in listbox. My combobox has 11 items so I must have 11 appropiate messages to be stored automatically in listbox . (The message is appropriate of what item is selected from the combobox)
Here is the full code implemented :
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
Dim msg1, msg2, msg3, msg4, msg5, msg6, msg7, msg8, msg9, msg10, msg11 As String
If ComboBox1.SelectedValue = "Item1" Then
msg1 = "Ati ales item1 din combobox"
[Code] .....
Code If User Doesn't Select Messagebox Button
Feb 26, 2009I have an application that has a timer. Every hour, the application will see what time it is. If it is after 5 P.M., then the application will shut the computer off. (For power saving purposes)I have a messagebox pop up warning the user. I want the user to be able to hit "Cancel" on a dialog box if he/she is still working on the computer and reset the timer to ask again in about an hour. If the user isn't there to select a button on the messagebox, I want the computer to turn itself off. But I can't get the code to skip the dialog box after so many seconds. [Code]
View 12 RepliesApplication That Allows User To Select Or Enter Into A Combo Box Number Of Days A Person Will Work
Oct 28, 2009Create an application that allows the user to select or enter into a combo box the number of days a person will work, and calculates the total amount of pay she will receive over that period of time. Salary is one penny the first day, two pennies the second day, four pennies the third say, and continuing to double each day.
The combo box must list the following items: 30, 180, 365, and 1000. Must be the default drop down box. Use a validating event procedure on the combo box.
The program should go through a loop once for each day, doubling the number of pennies with each iteration of the loop. You will need a running totl of the number of pennies that you add to with each iteration. To calculate the total amount of pay, multiply the total number of pennies by .01 and show the result in currency format.
Public Class Form1
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
[CODE]...
Display A Message To The User If Certain Criteria Is Not Met?
Oct 14, 2011I want to display a message to the user if certain criteria is not met. Example of this would be - If "B" is equal to or less than "A", I want to display a message to the user.
View 5 RepliesVS 2008 - Combo Box - Display User History On Browser
Jun 13, 2010I'm making a combo box that displays the users history on the browser, but when they first open it and press the combo box theres supposed to be nothing there except for the homepage, but it instead has the homepage and (Collection) in it... help?
View 11 RepliesAsp.net - Display Message To User And Then Abandon Session?
Jan 11, 2012I have added Two Factor Authentication to my Mobile ASP.Net Web App. When the user successfully enters their User Name and Password then a pin number is emailed to their email address which is stored in the database. The issue I am having is that after notifying the user that they don't have an email defined and then reload the login page but my code isn't notifying the user rather it is just reloading the Login.aspx page:
[Code]...
Display A Message Box To Inform A User Of A Requirement?
Mar 11, 2010I want to display a message box to inform a user of a requirement. In this case, the requirement is to insert a USB flash drive. This is easy enough:
MessageBox.Show(blah, blah, blah)
This message box will only have an OK button. What I need to happen is this:The OK button should not be available (enabled) until after the flash drive has had a chance to initialize. We will say this takes 2-4 seconds. So how to I keep the OK button disabled during this time and then enable after the time has passed?
VS 2008 - Textbox And Combo Box - User Has To Only Put The Icao Code And It Will Display The Airport
Mar 22, 2010I have a ton of airports listed in my Combo Box Right? They are displayed in the following format;
Airport Name (ICAO Code)
For Example
Kansas City Intl (KCI);
Since I have so many, Can someone provide me with a code i can use so in a textbox the user has to only put the icao code and it will display the airport.
For example
TextBox1.Text = KCI
Once that user has clicked out of the text box, It will seach the combo box for any values with KCI and will display it
So if textbox1.text = KCI, then combobox1.value = Kansas City Intl (KCI)
Databound User Control Doesn't Display Data In Main Form?
Apr 23, 2009I need to quickly demonstrate a project and decided to create a user control that is connected to an Access database through pure simple data connections (create the dataset and drag it on the control.)When I build the project and add the usercontrol to panel control on the main form, no data is shown in the datagrid.When I add the data components directly on the main form, the data is displayed properly. why I can't get my databound user control to display the data on my main form?
View 2 RepliesVS 2008 Display A Help Message When A User Hovers Their Mouse Over A Button
Jul 18, 2009I want to display a help message when a user hovers their mouse over a button.I think I need to use the mousehover event.What's the syntax for this event.
View 3 RepliesSmtp Has Suddenly Stopped Working - Doesn't Send Anything And Doesn't Generate Any Exception Message
Oct 13, 2010I use Visual Studio 2003, VB.net, NetFramework 1.4 and Windows XP I have been using the following Code Snippet for a number of years in both Web Services and Windows Applications. However suddenly around the 29th September 2010 it has stopped sending E-Mails from both Web Services and Windows Applications. The same problem has happened not only to my own Network but on two other Networks, one using XP as its Server and the other using Server 2003. All 3 of these are using different ISPs.
[Code]...
VS 2008 : Display Info In Textbox When User Select A Certain Node?
Aug 28, 2011i have treeview.. in which i want to display info in textbox when user select a certain node..
View 10 RepliesUse A Databound Combo Box To Display One Field In The Drop Down And Another As The Combo Box Text On Roll Up?
Feb 21, 2012How to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.
[Code]...
Application :: Display A Message To The User Whilst The Application Is Starting Up?
Nov 4, 2010I have recently created an application where a lot of data is loaded into objects when the application starts up, and other data as it is required. For example if the user requests the catalogue page then it will load all the top level category data into objects of type Category. This will then stay there to be used by other users (who will therefore not have to load this data into objects) and can be altered by admin if they happen to login during the same application instance. I know this is not the most efficient solution, as pointed out below, but it works and the page load, at the moment, is not too long. It is very quick if most of the required data is already loaded into objects. It is also tailored to the business' needs - unlike other techniques such as Linq-to-SQL.
View 1 RepliesCreate A Message Box That Stores User Name, Message And Post Datetime Into The Database As Messages Are Sent?
Jan 6, 2010create a message box that stores my user name, message, and post datetime into the database as messages are sent. Soon came to realise, what if the user changed his name? So I decided to use the user id (icn) to identify the message poster instead. However, my chunk of codes keep giving me the same error. Says that there are no rows in the dataset.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim name As String
Dim icn As String
Dim message As String
[code]....
Create An Error Message By Message Box To Tell The User To Enter A Number Only If They Key In A Character Value?
Feb 22, 2009how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click
Dim intFat As Integer
intFat = Integer.Parse(txtFat.Text)
lblResultDisplay.Text = txtFat.Text * 9
End Sub
My text box is call txtFat
Why Doesn't Ellipses Display On Load - They Display When Button Clicked
Jun 1, 2011In trying to test some graphic features, I am trying to get them to display on load so button doesn't have to be pressed. I used the following code as suggested from forum. Message boxes run but ellipses aren't displayed until button is clicked which is what I am trying to avoid!
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Button1.PerformClick()
Button1_Click(Nothing, Nothing)
[code]....
If Statements - Message Box Doesn't Appear
Dec 4, 2011This is for a blackjack game. Every time the dealer has 3 cards in his hand (first 3 labels) message boxes are supposed to appear corresponding to the value of these labels. When i click my button and 3 labels have a value in them, even thought they are equal to less than 17 and less than 21 a message box doesn't appear. [Code]
View 14 RepliesMessage Box Doesn't Show
Nov 10, 2011I'm working on this application, and I was doing the error checking on it, and I can't get the message box to show.
[Code]...
.net - Databound Combo SelectedItem Doesn't Seem To Work
Jun 12, 2009I'm attempting to bind a combo to a collection of objects:
Dim t As New TradeOrderStatus()
Dim ts As List(Of TradeOrderStatus) = t.GetStatuses
With Me.cboTradeStatus
[code]...
This works fine and I see the list of items in the combo. However when I try to set the SelectedItem of the combo to one of the items:
Me.cboTradeStatus.SelectedItem = Trade.TradeStatus
nothing happens. Trade.TradeStatus is an instance of the class TradeOrderStatus and all the necessart statuses are visible in the drop-down list. The SelectedItem remains as Nothing (or as the first item in the list if I omit the .SelectedItem = Nothing line from the binding code).
Debug.Print(CStr(Me.cboTradeStatus.Items.Contains(.TradeStatus)))
also returns false.
Timer - When The Message Box Stops, Then It Display The First Form Then Stop To Display?
Apr 8, 2011I have a problem in timers, I want to display 2 forms each one after 3 and 5, how to do that? I mean when the first form appears, after 3 seconds another one will appear, then after 5 seconds the second will appear. I have a code where someone gave me here but its for message box only, thus I modify it to put a form still does not work. Here the code I put in the timer below:
Private Sub frmblabla_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
tmrnote.Start()
Private Sub tmrnote_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrnote.Tick[code]....
I still have problem when the message box stops, it displays all the forms together. All I want is when the message box stops, then it display the first form then stop to display the second then stop to display the last. The first form must stay for 3 seconds on the screen, then after 3 seconds the second appears then after 5 seconds the last appears.
Windows Message Combo Box Drop Up?
Jan 29, 2010I have in my code the CBN_DROPDOWN command that is sent using a Windows Message, but I want to be able to make the Combo Box List Drop Up as well. Does anyone know if this is possible or how I can do it?
View 2 RepliesGetAsyncKeyState - Press Control, The Message Box Doesn't Pop Up?
Sep 10, 2011I'm currently using this
Public Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Integer) As Short
Public Function GetKeyState(ByVal Key1 As Integer, Optional ByVal Key2 As Integer = -1, Optional ByVal Key3 As Integer = -1) As Boolean[code].......
But even when I do press control, the message box doesn't pop up.